Year	current US$
1992	151800000
1993	332000000
1994	307100000
1995	427300000
1996	550900000
1997	300300000
1998	504140000
1999	407200000
2000	597800000
2001	699300000
2002	733570000
2003	888748582.309638
2004	1160672105.01954
2005	1289704315.92613
2006	1359467324.66364
2007	1468020000
2008	1865581563.70359
2009	1717698012.16514
2010	1586574271.35641
2011	1552078514.34036
2012	1419772515.43027
2013	1281848113.75308
2014	1421007454.36595
2015	1290863508.09402
2016	1306009166.92504
2017	1311822432.138
2018	1458210055.85311
2019	1472812241.61037
2020	1465987212.49097
2021	1718355918.32179
2022	1745245135.76651
2023	1970000000